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| author | Ewan D. Milne <emilne@redhat.com> | 2013-08-08 23:07:48 +0400 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2013-08-26 18:52:27 +0400 |
| commit | 279afdfe78a020b4b1a68bffd0009b961b12982e (patch) | |
| tree | c6562e5d1b0292a4b59764ad7feccb47e48088a5 /include | |
| parent | f8813d260eebb8c5d046ba4950a134c2283606a7 (diff) | |
| download | linux-279afdfe78a020b4b1a68bffd0009b961b12982e.tar.xz | |
[SCSI] Generate uevents on certain unit attention codes
Generate a uevent when the following Unit Attention ASC/ASCQ
codes are received:
2A/01 MODE PARAMETERS CHANGED
2A/09 CAPACITY DATA HAS CHANGED
38/07 THIN PROVISIONING SOFT THRESHOLD REACHED
3F/03 INQUIRY DATA HAS CHANGED
3F/0E REPORTED LUNS DATA HAS CHANGED
Log kernel messages when the following Unit Attention ASC/ASCQ
codes are received that are not as specific as those above:
2A/xx PARAMETERS CHANGED
3F/xx TARGET OPERATING CONDITIONS HAVE CHANGED
Added logic to set expecting_lun_change for other LUNs on the target
after REPORTED LUNS DATA HAS CHANGED is received, so that duplicate
uevents are not generated, and clear expecting_lun_change when a
REPORT LUNS command completes, in accordance with the SPC-3
specification regarding reporting of the 3F 0E ASC/ASCQ UA.
[jejb: remove SPC3 test in scsi_report_lun_change and some docbook fixes and
unused variable fix, both reported by Fengguang Wu]
Signed-off-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/scsi/scsi_device.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index a44954c7cdc2..d65fbec2533d 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -52,8 +52,15 @@ enum scsi_device_state { enum scsi_device_event { SDEV_EVT_MEDIA_CHANGE = 1, /* media has changed */ + SDEV_EVT_INQUIRY_CHANGE_REPORTED, /* 3F 03 UA reported */ + SDEV_EVT_CAPACITY_CHANGE_REPORTED, /* 2A 09 UA reported */ + SDEV_EVT_SOFT_THRESHOLD_REACHED_REPORTED, /* 38 07 UA reported */ + SDEV_EVT_MODE_PARAMETER_CHANGE_REPORTED, /* 2A 01 UA reported */ + SDEV_EVT_LUN_CHANGE_REPORTED, /* 3F 0E UA reported */ + + SDEV_EVT_FIRST = SDEV_EVT_MEDIA_CHANGE, + SDEV_EVT_LAST = SDEV_EVT_LUN_CHANGE_REPORTED, - SDEV_EVT_LAST = SDEV_EVT_MEDIA_CHANGE, SDEV_EVT_MAXBITS = SDEV_EVT_LAST + 1 }; @@ -164,6 +171,7 @@ struct scsi_device { atomic_t disk_events_disable_depth; /* disable depth for disk events */ DECLARE_BITMAP(supported_events, SDEV_EVT_MAXBITS); /* supported events */ + DECLARE_BITMAP(pending_events, SDEV_EVT_MAXBITS); /* pending events */ struct list_head event_list; /* asserted events */ struct work_struct event_work; @@ -261,6 +269,9 @@ struct scsi_target { * means no lun present. */ unsigned int no_report_luns:1; /* Don't use * REPORT LUNS for scanning. */ + unsigned int expecting_lun_change:1; /* A device has reported + * a 3F/0E UA, other devices on + * the same target will also. */ /* commands actually active on LLD. protected by host lock. */ unsigned int target_busy; /* |